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macnab69 · 09-30-2013, 10:54 PM

I'd already installed the portable version and copied the contents of users\username\AppData\Roaming\calibre to Calibre Portable\Calibre Settings. I then had my library as well as the portable version's (empty) Calibre Library available. So I used it to copy my library to Calibre Library, seeing as the portable version uses it by default. Then I was more or less happy.

I then installed the 32bit version, in Program Files (x86), and it worked.

Then I decided to see if a clean install of the 64bit version would work.

I had it installed in a folder called PROGS, not in Program Files. I didn't see calibre in the list in Revo. Didn't think of CCleaner (I don't know if it does a deep clean like Revo does?) Nor did I think of using Windows' uninstaller. So I just deleted the Calibre 2 folder in PROGS. (Naughty, I know.)

Then I re-installed the 64bit version, but I forgot to change the folder to PROGS, and it installed in Program Files. And it worked.

Then I used Revo to uninstall the 32bit version. But at the deep clean stage it wanted to delete the 64bit version's folder structure and registry entries, because of the order of install, so I skipped those steps.

Thinking about it, what fixed the problem? Deleting the contents of Calibre 2 and re-installing, or switching to Program Files instead of PROGS? Later today I'll remove calibre and re-install to PROGS and test. Then I'll report back, and see if we can get a more definitive answer. Just not able to restart the PC at the moment.

As a side note, it might be "safe" to run 32bit and 64bit in parallel, but then uninstalling one of them seems to be a bit risky, depending on the order of install and which one you want to uninstall.

09-30-2013, 10:54 PM	#18
macnab69 Zealot Posts: 129 Karma: 5754 Join Date: Jan 2012 Location: South Africa Device: Kindle 4	I'd already installed the portable version and copied the contents of users\username\AppData\Roaming\calibre to Calibre Portable\Calibre Settings. I then had my library as well as the portable version's (empty) Calibre Library available. So I used it to copy my library to Calibre Library, seeing as the portable version uses it by default. Then I was more or less happy. I then installed the 32bit version, in Program Files (x86), and it worked. Then I decided to see if a clean install of the 64bit version would work. I had it installed in a folder called PROGS, not in Program Files. I didn't see calibre in the list in Revo. Didn't think of CCleaner (I don't know if it does a deep clean like Revo does?) Nor did I think of using Windows' uninstaller. So I just deleted the Calibre 2 folder in PROGS. (Naughty, I know.) Then I re-installed the 64bit version, but I forgot to change the folder to PROGS, and it installed in Program Files. And it worked. Then I used Revo to uninstall the 32bit version. But at the deep clean stage it wanted to delete the 64bit version's folder structure and registry entries, because of the order of install, so I skipped those steps. Thinking about it, what fixed the problem? Deleting the contents of Calibre 2 and re-installing, or switching to Program Files instead of PROGS? Later today I'll remove calibre and re-install to PROGS and test. Then I'll report back, and see if we can get a more definitive answer. Just not able to restart the PC at the moment. As a side note, it might be "safe" to run 32bit and 64bit in parallel, but then uninstalling one of them seems to be a bit risky, depending on the order of install and which one you want to uninstall.